From the back cover: Pam and Lightning discover an old pony in a farmhouse shed. The pony appears neglected. Lulu and Anna, Pam's Pony Pals, agree. This is the saddest pony they have ever seen. Who owns the pony? And why aren't they caring for her properly?

First, the Pony Pals must find out who owns the pony. Why are the pony's owners not looking after her properly? Will the Pony Pals be able to help the sad pony?